<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript">
human = function(x){
	this.gender = x;
	this.tellGender = function(){
	};
};
human.prototype.whatGender = function() {
	alert(this.gender);
};
man = new human("남성");
wonam = new human("여성");
man.whatGender();
wonam.whatGender();
</script>
</head>
<body>
</body>
</html>